CTBrowser vs Voxelis
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CTBrowser
This medical app allows users to browse CDISC Terminology by downloading files from NCI EVS. Users can search codelists and view detailed information about them and individual terms. Most features are available offline once terminology files are downloaded.
- Browse CDISC Terminology
- Download terminology files from NCI EVS
- Search codelists
- View codelist and term details
- Offline access to downloaded files
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CTBrowser — CDISC Terminology, Anywhere CTBrowser is a simple, fast, offline-first way to browse and search CDISC controlled terminology right on your iPhone. Once a terminology is downloaded, it stays on your device — no internet connection needed to look things up. BROWSE Select any downloaded terminology and browse its codelists. Tap a codelist to see its code, name, submission value, and whether it's extensible, followed by every term inside it — complete with submission value, code, definition, and synonym. SEARCH Full-text search across every terminology you've downloaded. Search by code, name, submission value, synonym, or definition, with matches highlighted right in the results. Found what you need? Jump straight to that term in its codelist with a single tap. DOWNLOAD & MANAGE Fetch the latest CDISC terminology list and download exactly the standards and versions you need over Wi-Fi. Remove anything you no longer need, or clear everything at once from the Files tab. SUPPORTED STANDARDS CDASH, SDTM, ADaM, SEND, Define-XML, Protocol, Glossary, DDF, TMF, and MRCT. PRIVACY CTBrowser does not collect, transmit, or track any of your data. All terminology data is stored only on your device. Whether you're a clinical data manager, biostatistician, programmer, or researcher working with CDISC standards, CTBrowser keeps the terminology you need just a tap away.
Voxelis
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Educational and review use only. Voxelis is not FDA-cleared and must not be used for primary diagnosis. Open a CT or MR study instantly — local-first medical DICOM viewer for iPhone and iPad. WHAT'S NEW IN 1.5.3 An image-correctness release. • Sample studies render correctly. The bundled CT was a damaged file that displayed as a white blur. It has been repaired, and every study now opens at a window derived from its own pixels rather than one fixed setting. • Drag to window. With the WW/WL tool active, drag the image — sideways for contrast, up for brightness. • Anatomical orientation markers. A, P, R and L on the image edges, read from the study's own orientation data and rotating with the image. • 12- and 14-bit studies decode correctly. The darkest tissue in these files used to be misread, washing the image out. • Window values no longer carry a thousands separator. • Larger zoom controls, real thumbnails in the series rail, and a technical readout that no longer sits on the anatomy. • Now runs on iOS 17 and later.
Screenshots
Verdict
The clearest difference is update cadence: Voxelis at weekly against CTBrowser's every 9 months. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
CTBrowser ships an update every 9 months, Voxelis weekly. The most recent releases landed on September 16, 2026 and September 20, 2026 respectively.
| Parameter | CTBrowser | Voxelis |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 9 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 18.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 8 MB |
| Age rating | 12+ | 17+ |
| Developer | Ippei Akiya | Ruslan Dautov |
In-app purchases
CTBrowser
No in-app purchases
Voxelis
No in-app purchases







